package java67_4;

public class Sum100 {

	public static void main(String[] args) {
		int i = 1;
		int sum = 0;
		while (i <= 100) {
			sum = sum + i;// ! 1 +2 =3
			i++;
		}
		System.out.println("1-100之间的和是:" + sum);
	}
}
